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Ozone-induced free polyamine response in scots pine in northern Finland
Authors:Suorsa Marjaana  Jokela Anne  Sarjala Tytti  Manninen Sirkku  Huttunen Satu
Institution:Department of Biology, University of Oulu, Finland.
Abstract:The study aimed to assess the ozone-induced response in Scots pine (Pinus sylvestris L.) needles by measuring free polyamine concentrations. An open-top chamber experiment with realistically elevated ozone concentrations was carried out in northern Finland. A carry-over effect was detected: the concentrations of free polyamines, especially putrescine, were decreased at the beginning of the next growing season in the ozone-exposed trees. This indicates that the free polyamine pathway was not activated by ozone stress in Scots pines in northern conditions.
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